Liquid heaters and vaporizers – Automatic control of fluid fuel and water
Reexamination Certificate
2005-07-19
2005-07-19
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Automatic control of fluid fuel and water
C122S446000, C236S02000A
Reexamination Certificate
active
06918356
ABSTRACT:
A method for controlling a steam boiler or oil heater for maximum fuel efficiency by systematically finding the most fuel-efficient combination of input control values. A characteristic multi-dimensional look-up table is created by temporarily operating the process at all the possible functional combined settings of a plurality of input operators and recording for each combination of settings the resulting output values of a plurality of process parameters, for example, steam flow, steam pressure, and exhaust composition. Input combinations resulting in either non-functional process or unacceptable output values are eliminated. Steam flow rate is the primary output control parameter. A selected value of steam flow rate is the primary control setpoint for the process. If several combinations of input values can cause the process to meet the primary control setpoint, the combination using the minimum fuel flow is selected as optimal. If the desired setpoint does not correspond exactly to discrete input values in the table, the correct input settings may be inferred by interpolation. Valves and dampers are dynamically controlled by output drive signals in an improved closed-loop control, using a function of the process output value and time to recalculate and adjust the drive signals.
REFERENCES:
patent: 3042007 (1962-07-01), Chien et al.
patent: 3510635 (1970-05-01), Rouxel et al.
patent: 3545207 (1970-12-01), Jenkins, Jr. et al.
patent: 4064698 (1977-12-01), Stern
patent: 4457266 (1984-07-01), La Spisa
patent: 4497283 (1985-02-01), LaSpisa et al.
patent: 4653276 (1987-03-01), Sugano et al.
patent: 5279263 (1994-01-01), Cameau et al.
patent: 5739504 (1998-04-01), Lyons et al.
patent: 6390027 (2002-05-01), Lyons et al.
patent: 6520122 (2003-02-01), Kemp et al.
Goetsch John Philip
Rowe Michael Alan
Brown Robert C.
Intelliburn Energy Systems
Wilson Gregory
LandOfFree
Method and apparatus for optimizing a steam boiler system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for optimizing a steam boiler system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for optimizing a steam boiler system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3409130